Enabling Long Distance When Connecting To Time-Division Multiplexing Devices - HP A7533A - Brocade 4Gb SAN Switch Base Administrator's Manual

(vc_translation_link_init) parameter of the portCfgLongDistance command is enabled for
long-distance links.
On switches running Fabric OS 6.2.0 or later, during port configuration, you can specify fill words used on
long-distance links to be either ARBs or IDLEs in the VC_RDY flow control mode. The
vc_translation_link_init parameter specifies the fill words used on long-distance links. When set
to 1, the link uses ARB fill words (default). When set to 0, the link uses IDLE fill words. The IDLE fill word
option is not compatible with QoS configured links and credit recovery enabled links. You must disable
these features before configuring long-distance IDLE fill words.
On switches running firmware versions earlier than Fabric OS 6.2.0, this optional parameter controls the
long-distance link initialization sequence. When set to 1, it activates the long-distance link initialization
sequence. When set to 0, it deactivates this sequence. When the parameter is run without specifying a
value, 1 is assigned automatically for a long-distance link in VC_RDY flow control; otherwise, 0 is
assigned. For a long-distance link not configured for ISL R_RDY mode, this parameter must be set to 1;
otherwise, it must be reset to 0.
1. Connect to the switch and log in using an account assigned to the admin role.
2. Enter the portCfgLongDistance command to configure a switch port 63 to support a 100 km link
and be initialized using the long-distance link initialization protocol:
switch:admin> portcfglongdistance 4/15 LS 1 100
switch:admin> portshow 4/15
portCFlags: 0x1
portFlags: 0x20001 PRESENT LED
portType: 1.1
portState: 2 Offline
portPhys: 4 No_Light
portScn: 0
portId: 013f00
portWwn: 20:3f:00:60:69:00:02:48
Distance: super long <= 100km
portSpeed: 2Gb/s
Interrupts: 9 Link_failure: 0 Frjt: 0
Unknown: 0 Loss_of_sync: 0 Fbsy: 0
Lli: 9 Loss_of_sig: 9
Proc_rqrd: 0 Protocol_err: 0
Timed_out: 0 Invalid_word: 0
Rx_flushed: 0 Invalid_crc: 0
Tx_unavail: 0 Delim_err: 0
Free_buffer: 0 Address_err: 0
Overrun: 0 Lr_in: 0
Suspended: 0 Lr_out: 0
Parity_err: 0 Ols_in: 0
2_parity_err: 0 Ols_out: 0
CMI_bus_err: 0

Enabling long distance when connecting to Time-Division Multiplexing devices

Use this procedure when connecting to Time-Division Multiplexing (TDM) devices and when HP
StorageWorks switch has QoS and credit recovery enabled.
1. Connect to the switch and log in using an account assigned to the admin role.
Disable the QoS.
2.
switch: admin> portcfgqos –disable <slot/port>
If you do not disable the QoS, after the second or third Link Reset (LR), ARBS displays.
Fabric OS 6.2 administrator guide 431